package chapter04.demo3;
// 定义Animal类
public class Demo3 {
    class Animal{
        private String name;
        private int age;
        public String getName(){
            return name;
        }
        public void setName(String name){
            this.name = name;
        }
        public int getAge(){
            return age;
        }
        public void setAge(int age){
            this.age = age;
        }
    }
    // 定义Dog类继承Animal类
    class Dog extends Animal{
        private String color;
        public String getColor(){
            return color;
        }
        public void setColor(String color){
            this.color = color;
        }
    }
    //定义测试类
    public class Example03{
        public void main(String[] args){
            Dog dog = new Dog();
            dog.setName("牧羊犬");
            dog.setAge(3);
            dog.setColor("黑色");
            System.out.println("名称："+dog.getName()+",年龄:"+dog.getAge()+",颜色："+dog.getColor());
        }
    }
}
